He stopped playing again briefly in the mid-1940s, then returned to play with Max Kaminsky (1945–46), Jimmy Dorsey, and Nappy Lamare (1949–50).
Following his retirement he was the longtime coach for the Pittsburgh Hornets until the team disbanded from 1957-1961 at which point he moved on to lead the St. Catharines Teepees to the Memorial Cup in 1960 before dying of cancer later that year.
Additionally, Cless worked with other artists such as Frank Teschemacher, Charles Pierce, Gene Krupa, Art Hodes, Bobby Hackett, Max Kaminsky and Mezz Mezzrow.
Max Roach | Max Martin | Mad Max | Max Ernst | Max Bygraves | Max Weber | Max Bruch | Max McLean | Max | Max Factor | Max Beckmann | Max Baucus | Max von Sydow | Max Reger | Max Beerbohm | Max Ophüls | Max Müller | Max Headroom | Max Bill | Peter Max | Max Reinhardt | Max Planck Society | Max Azria | Max Payne | Max Mosley | Max Mirnyi | Max Mallowan | Max Liebermann | Max Eastman | Max Born |